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Sagot :
Answer:
Every time the pond is harvested, the earth should be dried. Drying the soil on a regular basis stabilizes colloids and oxidizes organic materials, creating an ideal environment for the growth of natural fish food.
Harrowing and drying have the following goals: to eliminate fishpond pests, predators, and competitors; to hasten the chemical decomposition of organic matter deposited so that nutrients are available for the growth of fish food in the fishpond; to completely harvest the fish stock; and to eliminate fish disease organisms.
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